Coating apparatus



. June 23.#1931. J. A. KENNEDY COATING IAPPARATUS Filed May 19. 1939Patented June 23, 1931 `UNrrrn STATES PATENT oFFIcE JOSEPH A. KENNEDY,OF PAWTUCKET, RHODE ISLAND, ASSIGNOR 10 ANACONDA. 'W'IRE AND CABLECOMFEANY, F N EW `YORK, N. Y., .A CORPORATION OF DELAWARE COATINGA1?PARA'IJUSV Application led 'May 19, 1930. Serial No. 453,719.

This invention relates to coating apparatus adapted to be used forapplying an outer coat of fluid matter to long and slender articles ormanufactures in the nature of '5ftubing, cable, wires and the like. ltis more particularly adapted to apply to such articles solutions ofnormally solid matter in volatile solvents, suchV as 'cellulosiclacquers and the like, and with this use in view, my obj ect in devisingthe invention has been to provide tered in the commercial application oflacquers, particularly those consisting of cellulose compounds dissolvedin volatile solvents, lto tubing and similar goods, when the conditionsof manufacture are such that continuous and uninterrupted passage of thegoods being coated through the lacquer is not possible; as wheninterruptions over nightl or for other purposes are required. Under suchconditions the lacquer is liable to dry and solidify to a greater orless extent and necessitate expenditure of time and labor before thecoating action can be resumed after a vtemporary shut down. It has beenmy object jto reduce such diiiiculties to the minimum.

In the accompanying drawings, I have illustrated certain specificembodiments of my invention, but it will be understood that theinvention can be otherwise embodied and that the drawing is not to 'beconstrued as defining or limiting the scope of the invention, the claimsappended hereto being relied upon for that purpose.

Referring to the iigures of the drawings- Fig. l is a side elevation ofmy improved coating apparatus;

Fig. 2 is a rear elevation thereof;

Fig. 3 is a plan sectional view taken on line 3-3 of Fig. l;

Fig. l is a horizontal sectional view taken on line 4 4 of Fig. l;

Fig. 5 is an elevation of the tube receiving member, partially insection;

Fig. 6 is a front end elevation thereof.

Referring more specifically to the drawings by reference characters, 1indicates the body portion of the apparatus, made as a box or tank, theinterior of which constitutes a reservoir 2 normally closed by a pivotedcover 3'. rllhe bottom of the box herein illustrated is provided withtwo passages l open from end to end, it being understood that anydesired number of such passages may be provided. Each of these passagesis formed by the bore of a tube or sleeve 5 which fits rotatably in thebottom wall of the box, suoli wall being suitably enlarged or swelledfor the purpose.

Rotation of the sleeve enables a portv 6 in its sideto be brought int-oand out of register Y with a complemental port 7 in the box bottom 8leading to t-he interior reservoir thereof, whereby flow of the lacquerYfrom the reservoir to the passage is permitted or prevented. Thesesleeves extend beyond the end walls of the box, and on one end of eachis an arm 9 by which it may be so rotated.

The passage 4lextends from end to end of the sleeve and is enough largerin diameter than the tube, cable or other goods being coated to permitof complete envelopment of such goeds by the lacquer. Loss of thelacquer from the ends of the passage is prevented, and centering of thegoods being coated within the passage is effected by the followingmeans. A clamp lO having a central passage through it is screwed uponone protruding end of the'sleeve and clamps against such end a. plate ordie v13 having a central orifice lll of approximately the same diameteras the goods l2 being coated. @n the other end of the sleeve is asimilar clamp l5 securing an apertured plate or die 16. Dies or plateshaving apertures of different diameters may be substituted'for oneanother as needed to fit tubes, etc.V of different diameters.

It will be readily understood that so long as the ports 6 and .7 are inregister a constant supply lof lacquer is provided to each passage,which envelops and coats the tubing or other goods traveling through thepassage, the thickness of the coating being regulated by the closenesswith which the die apertureV fits the outside of the tubing. Whenthe'operation is interrupted for any reason, as by shut down of theplant over night, the coming to an end of a piece of goods being coated,etc., flow of lacquer to the goods passage is shut olf by turning thesleeve. The quantity of lacquer then exposed Y to the air and'liable tobe dried is reduced to the minimum, and may be negligible, if the flowis shut ofi' shortly before the travel'of the goods ceases. But Whateverlacquer may remain and dry in the passage may be very easily removedbefore operation is resumed.

The cover'3 closes the main tank at all timesV except When the supplyofAlacquer is replenished, therein.

VVh'at I claimeand desire to secure by Let-l ters Patent is e A l. Alacquering, box,` comprising a body portion forming a lacquer reservoir,a memandy prevents surface evaporation member and said die member havingan opening therein of smaller diameter thanthe d1- ameter of the passagein the rotatable memloer.

In testimony whereof I have affixed my signature. Y Y

JOSEPH A. KENNEDY.

ber adjacent the reservoir and having a tube Y receiving passage and aconnectingport.

through Which lacquer flows,k from the reservoir to the first said.passage, l and ymeans whereby the said member can be moved to a positionclosing said port. z

2. A lacquering box comprising a body portion forming a lacquerreservoir, a rotatably mounted member adjacent the reservoir andhaving atube'receivingpassage and a connecting port through which lacquer .flowsfrom the reservoir to the passage, andv means whereby rotation of saidmember Will control the ilovv of lacquer through said port.

3. yA lacquering yboX, comprising a body portion having a lacquerreservoir, a member adjacent the reservoir and having a tube receivingpassage and a connecting port .comvmunicating with the reservoir forsupplying lacquer from the reservoir to said passage, the said memberbeing mounted lfor rotary movement about the longitudinal axis of saidsaid inem erv to a predetermined position about said axis Will close thesecond named passage. Y

4c. ',An'apparatusofthe character described ycomprising a body portionforming a reservoir for coating material, saidbody portion having abearing portion formed With a port first passage, and means wherebyrotation of l opening into said reservoir, a member rotatably mounted insaid bearing portion and having ai longitudinally extending passagethrough'vvhich the Work tobe coated is adapted lto travel, said memberhaving a port Vadapted to be moved relativelyrto the. port in saidbearing portion so as to control the flow of coating material from thereservoir to said passag l l v 5. The apparatus of claim 4, having a.die member securedto one end of said rotatable

